identity-prove

Create a cryptographic linkage proof between the master key and the active identity.

SERVERNostr Bray SOURCEnostr-bray

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-forgesworn-bray/identity-prove.md

WHAT IT DOES

What identity-prove does on Nostr Bray

AI agents use identity-prove to create or update resources in Nostr Bray, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Nostr Bray environment.

RISK

Why identity-prove is rated Medium

This tool creates a new cryptographic artifact (a linkage proof), which is a Write operation — it generates and likely publishes or stores a signed proof. It does not delete data, execute arbitrary code, or move money. Misuse could allow identity spoofing or unauthorized key associations, hence medium severity.

From the tool's definition Create a cryptographic linkage proof between the master key and the active identity

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs identity-prove safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Nostr Bray, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For identity-prove, this is the rule to start with:

identity-prove Rate-limited

identity-prove stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "identity-prove": {
      "limits": [
        {
          "counter": "identity-prove_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nostr Bray, apply this rule, and every identity-prove call is checked against it from then on.

FAQ

Questions about identity-prove

What does the identity-prove tool do? +

Create a cryptographic linkage proof between the master key and the active identity. It is categorised as a Write tool in the Nostr Bray MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on identity-prove? +

Register the Nostr Bray MCP server in PolicyLayer and add a rule for identity-prove: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Nostr Bray. Nothing to install.

What risk level is identity-prove? +

identity-prove is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit identity-prove? +

Yes. Add a rate_limit block to the identity-prove rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block identity-prove completely? +

Set action: deny in the PolicyLayer policy for identity-prove. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides identity-prove? +

identity-prove is provided by the Nostr Bray MCP server (nostr-bray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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